This research was conducted in April-May 2019 in the waters of Poncan Island, North Sumatra Province, which aims to determine the large nutrient content of substrate (nitrate and phosphate), the level of seagrass density Enhalus acoroides, and to determine the effect of nutrient content of the substrate on the density of seagrass Enhalus acoroides. Determination of the research station by purpo…
This research was conducted in May 2018 in the waters of Teluk Buo, Padang, West Sumatra. The purpose of this study was to determine the environmental quality of the Teluk Buo waters, especially to determine the abundance of macrozoobenthos and determine the relationship between sediment organic matter and abundance of macrozoobenthos. The method used in this study is a survey method. The resul…
This research was carried out in July to August 2019. It aimed to learn the shape and the abundance of microplastics in the coastal area of Bungus Bay, West Sumatra Province. Survey method was applied and PVC pipe was used to collect sediment samples from three different stations with three sampling points on each station. The results showed that the abundance of microplastics were significantl…
This research was conducted in April - June 2019, located at the Center for Environmental Technology Laboratory (PTL) - Agency for the Assessment and Application of Technology (BPPT), Building 820 Geostech, PuspitekSerpong, South Tangerang. The purpose of this study was to determine the biogas production from S. platensis microalgae grown in polluted domestic waste media from MuaraAngke waters …
This research was conducted in April-June 2019, located at the Center for Environmental Technology Laboratory (PTL) - Agency for the Assessment and Application of Technology (BPPT), Geostech Building 820, Serpong Archipelago Puspitek, South Tangerang. The purpose of this study was to determine the growth of C. vulgaris microalgae cultured in Muara Angke seawater polluted by domestic waste and t…
This research was conducted in April to Mei 2019 to determine the content of organic matter and abundance of phytoplankton, to find out differences in organic matter and phytoplankton abundance between station and to know the relationship between organic matter content and phytoplankton abundance as reference for determining the condition of the Sungai Guntung estuary, Kateman Sub-district, Ind…
Organic matters from high anthropogenic activities on Sungai Indragiri Estuary Indragiri Hilir Regency Riau Province can cause several impacts to marine environment. Makrozoobenthos as bio-accumulation organism can be indicator for organic matter consentration in . The aim of this research is to determine correlation between organic matter consentration and abundance of makrozoobenthos in sedim…
Artemia salina is a natural feed that is widely used in fish and shrimp hatcheries due to of its good nutritional content. This research was conducted in August 2019. This study aims to determine the effect of different types of feed on the growth rate of A. salina on a laboratory scale. The method used in this study was an experimental method that uses a completely randomized design (CRD) 1 fa…
This study aims to determine the type, abundance and distribution patterns of gastropods in the mangrove ecosystem of Tanjung Balai District. This research was conducted in March 2019 in the mangrove ecosystem of Tanjung Balai District, Asahan Regency, North Sumatra Province. The method used in this study is survey method by determining the location of the station using purposive sampling metho…
Dinoflagellate is a large of microalgae groups. Its abundance was dependent on nitrate and phosphate content. The research was conducted in September 2018 that located at waters of Poncan Gadang Island, Central Tapanuli Regency. The aims of this research was to analyze nitrate and phosphate content, identification of species of epiphyte dinoflagellates, and the relationship between nitrate and …
The presence of gastropod and bivalve in seagrass ecosystem has an important role in the structure of the food chain. Gastropod and bivalve are the class of mollusca that are known to be well associated with seagrass ecosystems. The aims of study are not only to determine the type and density of seagrass, but also to determine the structure of bivalve and gastropod communitie in seagrass ecosys…
This research was conducted in July-August 2019 in Nirwana Coast, Padang City of West Sumatera. The aim of this research was to determine the water quality, the structure community of epiphytic dinoflagellates in Nirwana Coast and the relationship of concentration of nitrate and phosphate with the abundance of epiphytic dinoflagellate in Nirwana Coast. The survey method was applied in this rese…
Microplastics known as a micro-particle of plastic wastes that is degraded through chemical processes originating from human activities that can cause very significant pollution, endanger the marine-life and environment, and humans through the use of aquatic resources and fisheries. The aim of the study is to determine type, abundance and distribution of microplastic spatially in sediments of t…
Research has been conducted in May - June 2019 on the Rangsang Island.This study aims to determine the effect of mangrove forests to coastlines contained in Rangsang Island Riau Province. Sampling location determined by purposive sampling that is by 3 station points that’s Segomeng village, Sungai Gayung Kiri village, and Tanjung Kedabu village. Then analyzed at the Laboratory of Physica…
Barnacle is one of the marine biota that belongs to the crustacean class and is one of the sub-classes of Wikipedia, whose life is permanently attached to hard objects submerged at sea and has properties that can damage and shorten the life of a building that it occupies. The purpose of this study was to determine the rate of attachment of barnacles on wood, concrete and plastic (PVC) substrate…
Bathymetry is a measure of high and low seabed where bathymetry maps provide information about the seabed. This research was conducted in November 2018 - January 2019, in the waters of the Sasak coast of West Pasaman district. This study aims to determine the depth and shape of the seabed morphology as well as the type of sediment, The research method used is a survey method, then the sampling …
Inhibiting the life of the Aedes aegypti mosquito is the main way that is done to eradicate DBF, which is popularly done by chemically synthetic insecticides can be used air pollution and poisoning of humans so it needs safer natural incecticides such as compounds derived from mangrove plants. Mangrove Avicennia marina contains saponis, flavonoids, and alkaloids can act as stomach poisons resul…
This study aims to determine the abundance, relative abundance and distribution patterns of gastropods in the intertidal zone of the Teluk Kasai beach. This research was conducted in June 2019 in the intertidal zone of the Teluk Kasai beach Pesisir Selatan District, West Sumatra Province. The method used in this research is survey method of determining the location of the station using purposiv…
This research was conducted from April to July 2019 at the Center for Environmental Technology Laboratory (PTL), Geostech 820 Building, Serpong Region Puspitek, South Tangerang. The aim of this research was to determin growth of Chlorella vulgaris on media added with Pb at different concentrations, and to determine the ability to absorb Pb. The experimental method was conducted by using concent…
Sungai Guntung has a potential for crabs because it still has fairly good mangrove forests in several areas. One of the problems found in the crab catch was high mortality rate caused by disease and ectoparasites. This research aimed to determine the types of parasites that attack crabs and to determine the prevalence and intensity of ectoparasite attacks on crabs precisely and systematically. …